diff --git a/lc0_main.go b/lc0_main.go
index 222e38b..91eb6fd 100644
--- a/lc0_main.go
+++ b/lc0_main.go
@@ -282,7 +282,7 @@ func checkLc0() {
 	if bytes.Contains(out, []byte("blas")) {
 		hasBlas = true
 	}
-	if bytes.Contains(out, []byte("dx")) {
+	if bytes.Contains(out, []byte("dx12")) {
 		hasDx = true
 	}
 	if bytes.Contains(out, []byte("cudnn-fp16")) {
@@ -339,9 +339,9 @@ func (c *cmdWrapper) launch(networkPath string, otherNetPath string, args []stri
 		c.Cmd.Args = append(c.Cmd.Args, fmt.Sprintf("--backend-opts=backend=cudnn%v", sGpu))
 	} else if hasDx {
 		if !hasBlas {
-			log.Fatalf("Dx backend cannot be validated")
+			log.Fatalf("Dx12 backend cannot be validated")
 		}
-		c.Cmd.Args = append(c.Cmd.Args, fmt.Sprintf("--backend-opts=check(freq=.01,atol=5e-1,dx%v)", sGpu))
+		c.Cmd.Args = append(c.Cmd.Args, fmt.Sprintf("--backend-opts=check(freq=.01,atol=5e-1,dx12%v)", sGpu))
 	} else if hasOpenCL {
 		c.Cmd.Args = append(c.Cmd.Args, fmt.Sprintf("--backend-opts=backend=opencl%v", sGpu))
 	}
@@ -463,7 +463,7 @@ func (c *cmdWrapper) launch(networkPath string, otherNetPath string, args []stri
 				fmt.Println(line)
 			case strings.HasPrefix(line, "*** ERROR check failed"):
 				fmt.Println(line)
-				log.Fatal("The dx backend failed the self check - try updating gpu drivers")
+				log.Fatal("The dx12 backend failed the self check - try updating gpu drivers")
 			case strings.HasPrefix(line, "GPU compute capability:"):
 				cc, _ := strconv.ParseFloat(strings.Split(line, " ")[3], 32)
 				if cc >= 7.0 {